Daichi Todo, a high school student who is not in the shadow of the class, suddenly moves to a mysterious uninhabited island that is not on the map during class. It seems that other students have also moved to the island where unknown creatures live, and the earth encounters four beautiful girls at the top of the school clique and will act together as they are …!? An unprecedented uninhabited island survival life begins, making full use of a mysterious smartphone app that allows you to get various items!